Barrier layer for thin film battery
First Claim
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1. A thin film battery comprising:
- a substrate;
an anode current collector layer and a cathode current collector layer formed on the substrate;
a cathode layer formed over the cathode current collector layer,an electrolyte layer formed over the cathode layer;
an anode layer formed over both the anode current collector layer and the electrolyte layer, anda single layer barrier layer formed over and in physical contact with each of the anode layer and the electrolyte layer, wherein the barrier layer comprises a glass material selected from the group consisting of SnO, tin phosphate, tin fluorophosphate, chalcogenide glass, tellurite glass and borate glass.
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Abstract
A thin film battery comprises a substrate, anode and cathode current collector layers formed over the substrate, anode and cathode layers formed over and in electrical contact with respective ones of the current collector layers, and an electrolyte layer formed between the anode and cathode layers. The thin film battery further comprises a barrier layer formed from a material such as tin oxide, tin phosphate, tin fluorophosphate, chalcogenide glass, tellurite glass or borate glass. The barrier layer is configured to encapsulate the thin film battery layers and substantially inhibit or prevent exposure of the thin film battery layers to air or moisture.
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Citations
30 Claims
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1. A thin film battery comprising:
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a substrate; an anode current collector layer and a cathode current collector layer formed on the substrate; a cathode layer formed over the cathode current collector layer, an electrolyte layer formed over the cathode layer; an anode layer formed over both the anode current collector layer and the electrolyte layer, and a single layer barrier layer formed over and in physical contact with each of the anode layer and the electrolyte layer, wherein the barrier layer comprises a glass material selected from the group consisting of SnO, tin phosphate, tin fluorophosphate, chalcogenide glass, tellurite glass and borate glass. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for forming a thin film battery, comprising:
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forming an anode current collector layer and a cathode current collector layer on a substrate; forming a cathode layer over the cathode current collector layer, forming an electrolyte layer over the cathode layer; forming an anode layer over both the anode current collector layer and the electrolyte layer, and forming a single layer barrier layer over and in physical contact with each of the anode layer and the electrolyte layer, wherein the barrier layer comprises a glass material selected from the group consisting of SnO, tin phosphate, tin fluorophosphate, chalcogenide glass, tellurite glass and borate glass. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification